EP3953135A1 - Valve - Google Patents
ValveInfo
- Publication number
- EP3953135A1 EP3953135A1 EP20723012.9A EP20723012A EP3953135A1 EP 3953135 A1 EP3953135 A1 EP 3953135A1 EP 20723012 A EP20723012 A EP 20723012A EP 3953135 A1 EP3953135 A1 EP 3953135A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- injection
- assembly
- insert
- tpe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims abstract description 65
- 239000007924 injection Substances 0.000 claims abstract description 65
- 239000004743 Polypropylene Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 238000001746 injection moulding Methods 0.000 claims description 11
- -1 polypropylene Polymers 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 38
- 238000012856 packing Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 4
- 238000000429 assembly Methods 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 235000008960 ketchup Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Definitions
- the present invention relates generally to a valve and particularly, although not exclusively, to a selfclosing valve and/or to a device for retaining a flexible valve.
- WO-A-2004/026721 describes laminar-type flexible membrane valves
- EP-B-0545678 and EP-B- 1005430 both describe silicon-based flexible valves which are non-laminar in shape.
- non-laminar self-closing flexible valves may be generalised as comprising a concave or convex shaped head portion, with at least one slit, a side wall portion, and a flange.
- laminar relates to forms which have a substantially uniform thickness with major surfaces being parallel to one-another.
- non-laminar relates to forms which have a thickness which varies and in which the shape does not have major surfaces which are parallel to one-another.
- Non-laminar valves are often used in association with closures which are themselves used in association with containers holding such consumable products as liquid soap, ketchup and cosmetics. They have the quality that when a user applies pressure to the container walls (for example by squeezing) the head portion of the valve responds to this increased pressure within the container by opening outwards in the form of "petals". The fluid contained within the container then passes through the slit of the head portion of the valve. Further, the container walls are typically resilient such that when the user stops squeezing them they move back to their original shape thus increasing the volume within the container and accordingly reducing the pressure within the container. This reduced pressure sucks the open "petals” of the valve back to their original closed position. This self-closing property is aided by the concave shape of the valve head.
- the present invention seeks to provide improvements in or relating to valves, self-closing valves, valve assemblies, valve sub-assemblies and closures therefore, and methods for forming the aforementioned.
- An aspect of the present invention provides a self-closing valve assembly comprising a valve overmoulded on an insert, in which the insert is formed by lateral injection, and in which overmoulded valve is injected by: generally central injection; off-centre injection; or lateral injection.
- An aspect provides a bi-injection moulded self-closing valve assembly, the assembly comprises a valve overmoulded on an insert, the overmoulded valve is injected using side gating of a mould.
- the insert may include a side wall and the injection point is located on one end of the side wall.
- the valve may include a side wall and the injection point is located on one end of the side wall.
- the valve may include a valve head and the injection point may be located generally centrally on the head.
- the valve may include a valve head (for example a generally circular head) and the injection point may be located in an off-centre position on the head.
- a valve head for example a generally circular head
- the valve may include a valve head in which one or more slit lines are to be formed, and in which the valve injection point is located away from the slitting line/s.
- the insert may be a retaining ring.
- the ring may be adapted, for example, to be fitted into a dispensing closure. It may have a snap bead or the like for engaging on a closure.
- the valve may be formed from a thermoplastic elastomer (TPE) material.
- TPE thermoplastic elastomer
- Thermoplastic elastomers (TPE), sometimes referred to as thermoplastic rubbers, are a class of copolymers or a physical mix of polymers (usually a plastic and a rubber) that consist of materials with both thermoplastic and elastomeric properties.
- the insert may, for example, be formed from polypropylene.
- the present invention also provides a bi-injected valve sub-assembly comprising a side gated polypropylene ring and a side gated TPE valve.
- the present invention also provides a bi-injected valve sub-assembly comprising a side gated polypropylene ring and a centre gated TPE valve.
- the present invention also provides a bi-injected valve sub-assembly comprising a side gated polypropylene ring and an off-centre gated TPE valve.
- the present invention also provides a self-closing valve comprising an injection moulded body formed from a TPE material, the body includes a peripheral sidewall and a central valve head, in which the injection gate for the body is formed away from the centre of the valve head.
- the stress levels in the TPE may be reduced and slitting can thereby be improved.
- the injection gate may be formed in the peripheral sidewall, for example at a“lower” end.
- the present invention also provides a valve sub-assembly, comprising a self-closing valve and an outer retaining ring, the sub-assembly is formed by a bi-injection moulding process, the ring is injected using a side gated injection process and the valve is injected using a side gated injection process.
- the present invention also provides a valve or valve sub-assembly as described herein in combination with a dispensing closure.
- the present invention also provides a method of forming a valve sub-assembly of the type comprising an insert and a valve, comprising the steps of injection moulding the insert using a lateral gate and overmoulding the valve using a lateral gate.
- the present invention also provides a mould for forming a sub-assembly as described herein, for example a side gated mould.
- the present invention also provides a method of forming a self-closing valve of the type comprising a central valve head and a peripheral wall, comprising the steps of injection moulding the valve with an off- centre injection gate.
- Methods of the present invention may also comprise the step of slitting the valve.
- Mould temperature approximately 30 degrees C.
- Injection time 0.5 seconds.
- Cooling time 5 seconds.
- Mould temperature approximately 30 degrees C.
- Injection time 0.5 seconds. Cooling time: 5 seconds.
- Slit/s may be formed so as not to coincide with the injection gate vestige thereon.
- the present invention also provides a mould for forming a valve as described herein, for example a side gated mould.
- Some aspects and embodiments relate to both side gated PP ring & side gated TPE (to improve slitting quality), as discussed in more detail below.
- Valve assemblies may be formed by a multi-material injection moulding process such as multi-component injection moulding process (also referred to a co-injection), multi-shot injection moulding (also referred to as sequential injection moulding), or over-moulding.
- multi-component injection moulding process also referred to a co-injection
- multi-shot injection moulding also referred to as sequential injection moulding
- over-moulding may be formed by a multi-material injection moulding process such as multi-component injection moulding process (also referred to a co-injection), multi-shot injection moulding (also referred to as sequential injection moulding), or over-moulding.
- Some embodiments relate to a method and device formed by off centre and direct feeding of the TPE valve and to side gating of the PP outer ring.
- Off-centre gating for example side gating, produces less inner stress of the TPE which results in better slitting.
- Some aspects and embodiments relate to a process which leads to TPE valves (possibly in combination with an outer ring) which exhibit less inner stress and hence provides a high quality valve (less leakage, more safe, better performance etc.), wherein slitting may also be improved.
- Some aspects and embodiments relate to the side gating of the mould.
- a centre gate can lead to slitting quality issues as you are slitting through the gate vestige which can vary in size and regularity from cavity to cavity and over time, so side gate has advantages.
- the side gate does not generate internal material stresses which would lead to other issues.
- the present invention also relates to a TPE valve and an overmoulded outer ring.
- the outer ring can be used to attached the valve/ring into/onto a closure.
- a combination of the TPE valve design and the VSA design, obtained through overmoulding, may be provided.
- the ring and/or outer ring may be combined with the top seal area between valve/closure. Design features may be included to ensure we do not have a weld line on the valve headplate.
- closure fitted with a valve and/or valve retaining device as described herein.
- Figure I shows a self-closing valve sub-assembly, comprising a self-closing valve and an outer retaining ring.
- the sub-assembly is formed by a bi-injection moulding process.
- FIG. 2A shows the self-closing valve, which in this embodiment is formed from a thermoplastic elastomer (TPE) material.
- the valve includes a peripheral wall and a concave central valve head.
- the wall and valve head are joined by a connecting wall, which in this embodiment can function as a hinge to allow the valve head to lift and possibly invert during use.
- Silts (for example two slits in the form of a cross) may be provided generally centrally on the valve head.
- Figure 2B shows the valve retaining assembly/device, which in this embodiment is formed from polypropylene.
- the device comprises a bead for snap-fitting the device into a closure.
- valve plus ring The device (valve plus ring) is shown in Figure 2C. It is formed separately from a closure and also from a container.
- FIG. 3 and 4 shows a closure showing the valve with ring inside a closure for use in cosmetic and/or food containers, for example.
- the valve component (valve plus ring) is fitted into a generally disc-like top plate which itself is then received (e.g. clipped/snapped) into the base of a closure.
- the top plate component is shown separate from the closure in Figures 5 and 6.
- the underside of the lid of the closure includes a domed projection which is shaped to correspond to the concave shape of the valve head, which ensures a good seal when the lid is closed.
- the top plate is formed integrally with the closure base.
- the closure therefore includes a TPE valve overmoulded on a polypropylene insert.
- a side gated polypropylene ring and a side gated TPE valve is provided.
- This embodiment combines a TPE valve design and a valve sub-assembly (VSA) design, obtained through overmoulding.
- VSA valve sub-assembly
- the ring and/or outer ring may be combined with the top seal area between valve/closure.
- Design features may be included to ensure we do not have a weld line on the valve headplate.
- this is combined with a top seal area between valve/closure.
- valve headplate there are no weld lines on the valve headplate.
- the insert includes closure retention features and the system relies on two seals working in unison: vertical compression onto TPE; and annual PP interference.
- the interference to the closure retention form provides horizontal pressure to aid slit closing, increasing the seal quality.
- the PP insert is injected in 0,2s, at 230°C in a mould at 30°C. Lateral injection has been validated. A weld line is created in opposite area to the gate. Specific venting could be needed in ends of fillings. Pressure in cavity is about 70bars. Most massive area could include a risk of sink marks/void bubbles due to skin solidification before it. The packing pressure can’t be transmitted as long as possible in this massive area. Homogenising thicknesses is recommended for some embodiments.
- the TPE overmoulding is also injected in 0,2s, at 200°C in a mould at 30°C.
- a lateral and centred injection have been tried and presented in the figures.
- Shear rate calculated at gate is under the limit preconized in Moldfow database with a gate 00,6mm and 0,2s of injection time. Injecting slower could lead to amplify hesitation effects and creates an air trap.
- Pressure in cavity at switchover is about 25 to 35bars depending of gate location used. Injecting in centre area limit the packing transmission all around the part while lateral injection permits to have a better control of packing all around the part but slightly less packing in central area. This could lead to sink marks/void bubbles in most massive areas depending of gate location. Part warpage, in terms of flatness, is quite similar for the values but appears more regular with lateral injection. A better control of packing and shrinkages should be obtained with lateral injection because we have a better control of packing all around the part. Stress tensor analyse doesn’t shows significative differences in terms of values and direction.
- Both PP and TPE are injected in 0,5s in a mould at 30°C.
- This injection time has been chosen to limit shear rate at gate and to have an overview of the results with realistic injection (injecting with lower injection time than 0,5s would imply to know the press injection inertia with precision).
- Injecting in 0,2s doesn’t modify significatively the flowfront pattern and air trap issue seen with the lateral injection.
- Pressure in the cavity at switchover are similar with both centred & lateral injection, about 25 to 30bars in cavity.
- Cantered injection permits to obtain a balanced filling without weld lines/air trap while lateral injection presents hesitation effects due to part thicknesses and gate location out of part symmetry axis.
- the air trap created with lateral injection is quite important and lead to different problems such flowfront speed variation, flow acceleration at end of filling on air trap location.
- stress tensor main direction is more homogeneous with a central injection than with a lateral one.
- the current plan is to off centre and direct feed the TPE and to side gate the PP.
- the benefits of side gating over centre gating are shown.
- With central injection the maintenance of more massive areas at the periphery is limited.
- modifying the part design by thickness homogenization may help to have more homogeneous volumetric shrinkages and less sink marks risks in most massive area on part perimeter with the central injection.
- a calculation could be done to validate possible geometry optimizations (based on part solidification analyse, meaning thicknesses could be optimize with less differential thicknesses and a thinner perimeter area).
- compaction may be better.
- the lateral injection may create an air occlusion, differential orientations of the main directions of the stress tensor, a sub-compaction of the centre.
- a centre gate may lead to slitting quality issues as you may then be slitting through the gate vestige (which can vary in size and regularity from mould cavity to mould cavity and over time), so side gating can have advantages.
- side gating does not generate internal material stresses which would lead to other issues.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Closures For Containers (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1905182.0A GB201905182D0 (en) | 2019-04-11 | 2019-04-11 | Valve |
PCT/EP2020/060364 WO2020208252A1 (en) | 2019-04-11 | 2020-04-13 | Valve |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3953135A1 true EP3953135A1 (en) | 2022-02-16 |
Family
ID=66809941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20723012.9A Pending EP3953135A1 (en) | 2019-04-11 | 2020-04-13 | Valve |
Country Status (9)
Country | Link |
---|---|
US (1) | US20220176600A1 (en) |
EP (1) | EP3953135A1 (en) |
JP (1) | JP2022528918A (en) |
CN (1) | CN113748006A (en) |
BR (1) | BR112021020142A2 (en) |
CA (1) | CA3136523A1 (en) |
GB (1) | GB201905182D0 (en) |
MX (1) | MX2021012465A (en) |
WO (1) | WO2020208252A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7422624B2 (en) * | 2020-07-30 | 2024-01-26 | 株式会社吉野工業所 | cap |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8526456D0 (en) * | 1985-04-23 | 1985-11-27 | L S R Baby Products U K Ltd | Nipple |
AU6757187A (en) * | 1986-01-22 | 1987-07-23 | Retief, C.T. | Closure for a container |
US5213236A (en) | 1991-12-06 | 1993-05-25 | Liquid Molding Systems, Inc. | Dispensing valve for packaging |
JPH09183445A (en) * | 1995-12-27 | 1997-07-15 | Yoshida Kogyo Kk <Ykk> | Sleeve insert hinge cap |
US6056536A (en) * | 1997-03-20 | 2000-05-02 | Husky Injection Molding Systems Ltd. | Valve gating apparatus for injection molding |
GB9717595D0 (en) | 1997-08-21 | 1997-10-22 | Metal Box Plc | Valves for packaging containers |
FR2771078B1 (en) * | 1997-11-14 | 2000-01-28 | Oreal | FLOW REDUCING MEMBER, ESPECIALLY FOR A CONTAINER CONTAINING A COSMETIC PRODUCT AND MANUFACTURING METHOD |
US6668861B2 (en) * | 2002-02-08 | 2003-12-30 | Mac Valves, Inc. | Poppet valve having an improved valve seat |
US20040020533A1 (en) * | 2002-08-02 | 2004-02-05 | Brian Engle | Low permeation weldable fuel tank valve |
WO2004026721A2 (en) | 2002-09-16 | 2004-04-01 | Alpla-Werke Alwin Lehner Gmbh & Co. Kg | Self-closing membrane valve |
JP4683259B2 (en) * | 2003-03-31 | 2011-05-18 | 株式会社吉野工業所 | Method for forming screwable hinge lid and hinge lid |
US7383851B2 (en) * | 2004-10-07 | 2008-06-10 | Eaton Corporation | Closed loop pressure control system and electrically operated pressure control valve with integral pressure sensor and method of making same |
US20070010791A1 (en) * | 2005-07-07 | 2007-01-11 | Bristol-Myers Squibb Company | Valve for inflatable chamber of medical device |
US20080283789A1 (en) * | 2007-05-14 | 2008-11-20 | Diana Rubio | Valve for controlling the flow of fluid |
US20110186573A1 (en) * | 2010-02-04 | 2011-08-04 | Trudeau Corporation 1889 Inc. | Cap for a container |
DE102010049551A1 (en) * | 2010-10-25 | 2012-04-26 | Schaeffler Technologies Gmbh & Co. Kg | Control valve for a camshaft adjuster |
RU2014114510A (en) * | 2011-09-13 | 2015-10-20 | Аптаргруп, Инк. | OUTLET VALVE |
FR2997745B1 (en) * | 2012-11-06 | 2014-11-07 | Sonceboz Automotive Sa | MOTORIZED OVERHEAD VALVE WITH IMPROVED SEALING |
DE102013200285B4 (en) * | 2013-01-11 | 2021-11-04 | Robert Bosch Gmbh | Ceramic mass, its use and ceramic injection molding process |
US9505334B2 (en) * | 2013-08-05 | 2016-11-29 | Signode Industrial Group Llc | Valve |
JP6209027B2 (en) * | 2013-09-06 | 2017-10-04 | 株式会社ライフプラテック | Cap with slit valve |
BR112016014455A2 (en) * | 2013-12-21 | 2017-08-08 | Gabor Fazekas | VALVE CLOSING ELEMENT, CLOSING COVER, AND, METHOD AND APPARATUS FOR MANUFACTURING A VALVE CLOSING ELEMENT |
GB2531991B (en) * | 2014-09-10 | 2020-07-22 | Mayborn Uk Ltd | Valve Assembly |
-
2019
- 2019-04-11 GB GBGB1905182.0A patent/GB201905182D0/en not_active Ceased
-
2020
- 2020-04-13 BR BR112021020142A patent/BR112021020142A2/en unknown
- 2020-04-13 EP EP20723012.9A patent/EP3953135A1/en active Pending
- 2020-04-13 MX MX2021012465A patent/MX2021012465A/en unknown
- 2020-04-13 CA CA3136523A patent/CA3136523A1/en active Pending
- 2020-04-13 JP JP2021559705A patent/JP2022528918A/en active Pending
- 2020-04-13 CN CN202080027661.7A patent/CN113748006A/en active Pending
- 2020-04-13 US US17/600,784 patent/US20220176600A1/en active Pending
- 2020-04-13 WO PCT/EP2020/060364 patent/WO2020208252A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
MX2021012465A (en) | 2022-03-22 |
CA3136523A1 (en) | 2020-10-15 |
CN113748006A (en) | 2021-12-03 |
JP2022528918A (en) | 2022-06-16 |
BR112021020142A2 (en) | 2022-02-01 |
WO2020208252A1 (en) | 2020-10-15 |
US20220176600A1 (en) | 2022-06-09 |
GB201905182D0 (en) | 2019-05-29 |
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